Self-propelled cleaning device



FIG. 1 is a top perspective view of a self-propelled cleaning device showing our new design;

FIG. 2 is a front view thereof.

FIG. 3 is a rear view thereof.

FIG. 4 is a left side view thereof.

FIG. 5 is a right side view thereof; and,

FIG. 6 is a top view thereof.

The portions of the self-propelled cleaning device depicted in broken lines are not part of the claimed design. 

CLAIM The ornamental design for a self-propelled cleaning device, as shown and described. 